Update Sony Xperia Z3 to Android 5.1.1 Lollipop with CM12.1 – How to

Until Sony decides to adorn your Xperia Z3 with the beautiful Android 5.1.1 Lollipop, here is how to do it manually. Very close to AOSP, this unofficial CyanogenMod 12.1 custom firmware is based on the latest Lollipop version. Follow this guide to flash CM12.1 on Xperia Z3.